Ring neck key can



Dec. 25, 1934. H. J. DOUGLASS RING NECK KEY \CAN Filed March 9, 1929 ag-manna: r mun-- Elan! I I IIIIIIIIIII I VENTOR 19W r @691 ATTORNEYS.

inthe accompanying drawing, inwhich:

Patented Dec. 25, 1934 UNITED STATES PATENT OFFICE to Pacific Can 00., San poration of Nevada Francisco, Calif., a cor- Application March 9, 1929, Serial No. 345,655

6 Claims. (01. 220-54) This invention relates to cans of the type in which a collar or neck member is positioned in the upper end of the can body to provide a retaining shoulder or seat for a can end cover or the like, the invention being particularly directedto an improved'form of neck member and the method of securing same in the upper end of the can b y. V v l.

Cans of the collar or neck-type are invariably l0 scored and provided with an aligned projecting tongue and a key, and also with a neck member whichis secured and positioned interiorly of the scored portion of the can. When the can is to be opened, the key is applied to the end of the tongue and turned. This causes the tongueto wind itself about the key and as the winding operation proceeds the scored portion tears and winds itself about thekey, thereby completely separating the can top or cover portion with relation to the can body. The upper end of the neck member becomes exposed by removal of-the scored portion of the can, and as. such forms a seat and a retaining shoulder for the can cover,

Numerous types of" interior collars or neck members are in use at the present time, but all 3 are open to one or more objections. Some present a raw or sharp edge which is liable to cut-the user's hand. Practically all collar or neck members are made from strip metal which must be, 3 formed into a ring and the overlapping-ends riveted or otherwise secured, thereby providing further cutting edges or sharpcorners which are liableto damage the user. Riveted strip rings are furthermore unsightly. They are difiicult to in- ,5 sert and secure in the can bodies, and they are under no condition leakproof. Other types of col: lars or neck members are in use butthey are cost ly and require complicated machines for their application and manufacture. s

The object of the present invention is to generally improve and simplify the construction and; operation of collar or neck members of the char-. acter described; to provide a'neckmember in which damage to the user by cutting or otherwise is entirely eliminated; to provide a neck member which is formed from a single piece of material, thereby eliminating. overlapping ends, riveting, crimping etc.; to provide aneck member which may be readilyinserted, applied and secured in a can; to provide a neck member which permits a press fit with relation to the can; and further to provide a neck member whereby'leakage between the neck and the can is entirely eliminated. The invention is shownby way of illustration Fig. lie a perspective View of the neck member,

Fig. 2 is across section taken on line 11-11 Fig. 1,

F g. 3.is a half-side elevation andsection of a can showing the neck member inposition within 5 the can, said viewalso showing the tongue and the c re str Fig. 4 is a partial plan'view of the blank forming the can body,

5 is an enlarged sectionof one edge of the IQ;

can body, showing'the scored strip removed, Fig. 6 isa sectional view showing the can cover separated with relation to the can body and the:

neck member- Referring to the drawing in detaiLand particu- 15-;

larly to Fig. 3, A indicates the can body proper, 2 the bottom section which is applied and secured in the usual manner, and 3 the top or can section which is alsoapplied and secured in the usual manner, that is, the top of the body portion is 20.

providedwith aradially outward flange 4 which is interfolded with thefiange of the can top as indicated at 5 to form a double seam The can body proper is provided with a tongue 6 and the body has spaced scored cated by the dotted lines 7 to form a scored tear stripB, the upper edge of which'is spaced from the can topand whichis removed by key operation when the can is to be opened. The upper end of the can body is in this instance provided with ,0.

an inturned annular groove, such as indicated at 9 to form an annular. shoulder 10 which serves two functions-first that of reinforcing and strengthening the upper end of the can, and secondly that of forming a stop shoulder to receiveand support a collar or neck member generally indicated at 11. This neck member is drawn out of a single piece of metal by press or die operations, so as to have no seam or overlapping ends. The upper edge of the ring is provided with an inturned annular fiange 12, so as "to present a smooth edge and to eliminate any danger'of cutting the user, and the lower edge of the collar is provided with an inturned flange preferably tapered as shown at 14 to engage the ,5, stop shoulder 10. Y 7

The collar or neck member-is inserted through the open top end of the body before the cover 3 is-applied and the flange 4 serves to axially align collar and body in the inserting operation, espe- 5 cially whenthe flange 14 is employed inthe collar. The collar is pressed in, when inserted, and thus fits so snugly as to be retained by friction and furthermore forms a liquid tight joint, its

. downward movement being limited by theshoul- Q- marks or lines as indi- 2,5

der or ledge 10. When the tear strip is removed by key operation, the cover 3 becomes entirely separated with relation to the body portion of the can. Furthermore the upper edge of the collar or neck member 11 becomes exposed and it thus functions as a retaining shoulder .and seat for the cover 3, which may be applied as a slip fit reclosure to cover the contents of: the can, and which may be removed from time to time as the contents are to be used. The snug, tight fit is, in this manner, obtained not only between the neck member and the body of the can, but a snug slip fit is formed also between the cover" and the neck member.

The neck member whichisdrawn into ring shape from a single piece of metal by die operation or the like, first of all forms a seamless ring, thereby eliminating all overlapping ends and joints through which leakage may press fit may be obtained so that the neck member can be secured in place by iriction only. Such a fit furthermore eliminates leakage.

By providing the inturned flange 14 on the lower edge of the neck member, insertion of the neck member within the can during the assembling operation becomes exceedingly simple. The cost of manufacture is reduced by the structure shown, and the output by the machines employed can be increased.

-While certain features of the present invention are more or less specifically described, I wish it understood that various changes may be resorted to within the scope of the appended claims, similarly, that the materials and finish of the several parts employed-may be such as the manufacturer may decide or varying conditions or uses may demand,

Having thus described my invention, what I claim and desire to secure by Letters Patent is:

l. A can comprising .a can body portion having aradially outward flange at an end edge portion adapted for double seam interlock with a cover, said can body having spaced scored lines adjacent said flanged end edge portion to provide a tear strip adapted to be removed to open the can after a cover has been double seamed thereto, a jointless collar of thin drawn metal pressed into the can body through said open flanged endand overlying the scored strip portiOn interiorly ofthe can body and extending beyond the scored strip portion in both directions axially of the-can body, said scored strip when removed being adapted to expose aportion of the collar intermediate the edges of the oolla'r',-and said jointless collar being fixedly secured in said can body adjacent the end of the can body through which it is inserted into thecan.

2. A can structure including abody arcuate in transverse section provided'with a radially outwardly flanged end edge at anopen top end and having spaced scored lines adjacent said flanged edge to provide a strip adaptedTto be removed to open the can after a cover has been double.

seamed thereto, a jointless collar member of thin drawn metal conforming to the arcof the can body and adapted to be pressed into the upper end-of the can body adjacent said flanged open end and interiorly overlyingv said scored remov able strip, said jointless collar being insertable into the can body through said flanged open end to which it lies adjacent, and an inturned portion formed in the can body with which the lower end of the collar member engages, and

said collar and 'said'can body having relatively body through said inturned portion of the body being adapted for take place. A

opposing respective faces which are in snug contact relation in the zone of said tear strip.

3. A can structure including a can body having an end edge portion flanged radially outwardly relative to the axis of the can body and adapted for double seaming to a cover, said can body having an inturned portion formed therein adjacent said flanged end portion, a jointless colla-r of thin drawn metal fixedly secured within the end of said can body intermediate said inturned portion and said flanged end portion of the body, said collar being insertable into said can flanged end portion, and said preventing the collar from passing thereby, and said jointless collar having a tapered end portion for passing through the flanged end portion or the oanbody' and for engaging the inturned portion 0'! the can body.

4. A device of the character described including a container-body havingawallarcuate in lateral transverse section, said container body having a radially outwardly flanged'end edge por-' tion adapted'for double seaming to a'cover for said end and said body havingspaced score lines adjacent said flanged end and thereby providing an integral tear strip forming a part of the can body when the can body is closed andadapt ed for removal to open said can; 'a' jointless internal collar member of thin drawn metalconforming on its radially exterior face to the arc of the radially inward containerwall, said jointless collar overlying and extending beyond said strip in both directions axially of the can body, and said collar at its lower portion being-fixedly secured to the container body adjacentthe scor ing for the tear strip, said collar being adapted for insertion into the can body through said flanged end to which it lies adjacent, "and said collar and said body havingstraight opposing respective faces in snug contact relation in the zone of the scored tear strip.- i

5. A'deviee of the character described including a container body having a wall arcuate in lateral transverse section, said container body having'a radially outwardly" flanged'end edge portion adapted for double seaming to a cover for said end and said body-having spaced score lines adjacent said flanged end and thereby providing an integral tear strip forming a part of the can body when the can body is closed and adapted for removal to open said'can, a jointless internal collar member of thin drawn metal conforming on its radially exterior face to the arc of the radially inward container wall, said jointless collar overlying and extending beyond said scored strip in both directionsaxially'of the can body, and said collar at its" lower portion being fixedly secured to the container body adjacent the scor ing for the tearstrip, said collar being adapted for insertion into the 'can body through said flanged end to which it lies adjacent, and said viding an integral tear strip forming-a part of-thebody having a wall arcuatein lateral transverse section, said container body can body when the can body is closed and adapted for removal to open said can, a jointless internal collar member of thin drawn metal conforming on its radially exterior face to the arc of the radially inward container wall, said jointless collar overlying and extending beyond said scored strip in both directions axially of the can body, and said collar at its lower portion being fixedly secured to the container body adjacent the scor- 10 ing for the tear strip, said collar being adapted for insertion into the can body through said flanged end to which it lies adjacent, and said collar and said body having straight opposing respective faces in snug contact relation in the zone of the scored tear strip, and said body including therein a stop member for limiting the insertion of the collar into the can body, the said collar having a radially inturned portion at its lower edge adapted to seat on said stop member.

HENRY J. DOUGLASS. 

